Blender is fine for creating morphs. Here is a quick run-through of my workflow.

1.       Load figure .obj from the geometries folder into Compose.

2.       Create  then save a joined and vertex mapped copy of the parts involved in the morph.

3.       Import that obj into Blender.

4.       Press the NumPad 1 key with the cursor in the 3d window.

5.       Press the s key and enter 4 or 5 as your scaling value.

6.       RMB click the figure to select it then press the NumPad . to frame the selection in the viewport.

7.       Enter sculpt mode and begin sculpting the morph or use proportional editing to move vertices into rough proximity for large changes then sculpt detail.

8.       When finished press the s key again and enter .25 if you scaled by 4 or .2 if you scaled by 5.

9.       Export the .obj.

10.   Open Compose and morph the parent figure.

11.   Use Poser’s Little Helper, Morph Loader in DAZ Studio, or the native Poser morph loading to add the morphs as included or INJ/REM files.

I use Compose in the workflow because it solves the nasty issues of exploding vertices of the imported morph data and separation at the edges between groups when using the smooth brush in sculpt mode.  Also you can save your joined and mapped meshes in a work folder and re-use them to make later morphs without having to repeat the entire setup process.

The downsides to Compose are that it only works properly under Java 1.1, 1.2 or the current 1.6 version and that it can’t handle the vertex count of a full G2 or Mill3/4 figure so you have to create separate groups for the body and head if you are making FBMs. (It was written in 1999 when meshes were a bit less poly heavy.)

If you want to use INJ/REM to load your morphs Poser’s Little Helper is easy to use and it’s free.

I have a tutorial available for download that more fully describes the process.